PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/15-05:27:50
G01     38.2           12.0                1.0 +/-    4.30       2.8 +/-    4.30  0.070 / 0.140
G02     198.4          12.6                3.2 +/-    2.53       8.3 +/-    2.53  0.070 / 0.150
G06     173.1          42.2                8.0 +/-    0.67      11.2 +/-    0.67  0.150 / 0.290
G13     233.4          20.6                5.6 +/-    1.80      12.2 +/-    1.80  0.250 / 0.220
G15     264.8          11.2                3.1 +/-    1.79       8.4 +/-    1.79  0.040 / 0.030
G17     9.8            67.6                4.8 +/-    0.53       5.2 +/-    0.53  0.030 / 0.020
G19     291.9          72.1                5.2 +/-    0.52       5.4 +/-    0.52  0.040 / 0.070
G24     315.6          20.4               -0.2 +/-    2.48      -0.3 +/-    2.48  0.040 / 0.060
G28     66.2           52.1                5.8 +/-    0.66       7.1 +/-    0.66  0.200 / 0.510
G30     156.7          28.4                8.7 +/-    2.56      15.9 +/-    2.56  0.320 / 0.650